http://www.buyartsuppliesonline.org/artists-paint/
How do artists paint delicate leaves like the ones in John Saul's Paintings?
What style and size brush should be used?
Sorry about the artist's name, its Jerry Sauls, not John.
There is no answer to your question. Every artists has his own technique and favorite tools to achieve the desired result. You will need to experiment and try out varied tools and techniques yourself. Some artists achieve incredibly delicate effects with larger brushes than you might think.
 |
 Lot of 10 New Artists Artist Paint Brushes w Palettes $12.98 Time Remaining: 29m Buy It Now for only: $12.98 |
 DARK WALNUT with Utility tray wood display easel painting easels artist new $30.95 Time Remaining: 1h Buy It Now for only: $34.95 |
 LARGE ARTIST EASELS DISPLAY EASEL art supplies TRIPOD FLOOR EASEL painting easel $21.99 Time Remaining: 1h 3m Buy It Now for only: $24.99 |
 NEW 13 Bob Ross Artist Landscape Oil Paints $69.99 (1 Bid) Time Remaining: 2h 34m |
 LOT 4 15 piece ARTIST PAINT BRUSH SETS 60 TOTAL NEW $0.99 Time Remaining: 3h 6m |
 LOT 5 ARTIST PAINT BRUSHES BUNDLE 10 pieces EACH SETS 50 TOTAL $0.99 Time Remaining: 3h 6m |
 ARTIST 12 ACRYLIC COLOUR PAINTS AND 15 PAINT BRUSH SET $7.89 Time Remaining: 3h 7m |
 ARTISTS 12 WATER COLOUR PAINTS AND 15 PAINT BRUSH SET $7.89 Time Remaining: 3h 7m |
 Aaron Brothers Wooden Portable Painting Artist Easel Brand New in the Box $35.00 (1 Bid) Time Remaining: 3h 9m |
 Golden Oak Stained ARTIST EASEL Display painting easel art supplies wooden new $24.95 Time Remaining: 3h 13m Buy It Now for only: $29.95 |
 Artistic 203 2 Sable Artist Oil Painting Brush $6.00 Time Remaining: 3h 15m Buy It Now for only: $6.00 |
 5PC Artist Painting Pallette Knives Spatula Paint Art Craft Cake Decorating $6.09 Time Remaining: 3h 25m |
 ARTIST 12 ACRYLIC COLOUR PAINTS AND 15 PAINT BRUSH SET $7.89 Time Remaining: 3h 36m |
 Winsor Newton Artist Acrylic Paint 2 Brand NEW 60ml Tubes Blues Series 2 $4.00 Time Remaining: 3h 38m |
 An Artists Paint Palette High Quality 85x1225 $14.95 Time Remaining: 3h 38m Buy It Now for only: $14.95 |
 20 NEW Tubes of Winsor Newton Artists Watercolor Paints ALL Series 1A thru 4B $37.00 (12 Bids) Time Remaining: 3h 51m |
 Artist Paint Brush Set 25 PC ACYRLIC Oil Painting Brushes Wholesale Art Supplies $9.95 (1 Bid) Time Remaining: 3h 58m |
 CLASSIC ARTIST OILS Oil Paints w Case GRUMBACHER Brushes $39.00 Time Remaining: 4h 5m |
 5PC Artist Painting Palette Knives Spatula Oil Paint Art Craft Cake Decorating $6.09 Time Remaining: 4h 13m |
 Sedona Red stain wood ARTIST EASEL Display painting easel art supplies easels $24.95 Time Remaining: 4h 21m Buy It Now for only: $29.95 |
 NEW Winsor Newton ARTISTS Oil Paint 37ml CERULEAN BLUE 137 $9.99 Time Remaining: 4h 28m Buy It Now for only: $23.99 |
 ARTISTS PALLET AND 7 PAINT BRUSH SET BNIB $1.56 Time Remaining: 4h 31m |
 NEW Winsor Newton ARTISTS Oil Paint 37ml CADMIUM YELLOW PALE118 $9.99 Time Remaining: 4h 34m Buy It Now for only: $24.99 |
 9 x 12 CLEAR ACRYLIC ARTIST PAINT MIXING PALETTE MAKES CLEANUP EASY $9.99 Time Remaining: 4h 35m Buy It Now for only: $9.99 |
 SPRINGTIME IN THE GARDEN by Combination Artists SC Bk Decorative Paint $6.25 Time Remaining: 4h 40m Buy It Now for only: $6.25 |
 Winsor Newton Cotman Water Colour The Compact Set brand new Artists paints $11.06 (7 Bids) Time Remaining: 5h 1m |
 111 VERY VINTAGE RARE ARTIST PAINT BRUSH HANDLES ONLY OLD BUT NEW IN CONDITION $55.00 Time Remaining: 5h 14m |
 111 VERY VINTAGE RARE ARTIST PAINT BRUSH HANDLES ONLY OLD BUT NEW IN CONDITION $50.00 Time Remaining: 5h 17m |
 24 Portable ART SUPPLIES TABLE TOP PAINTING EASEL ARTIST EASEL DISPLAY EASEL $13.99 Time Remaining: 5h 30m Buy It Now for only: $15.99 |
 36 ARTIST EASEL ART TABLE TOP EASEL ART SUPPLIES DISPLAY EASEL PAINTING EASEL $13.99 Time Remaining: 5h 34m Buy It Now for only: $15.99 |
 High Quality 12 PCS Pointed Artist Paint Brushes For Oil Acrylic Short Handle $9.29 Time Remaining: 5h 36m |
 BRAND NEW FROM ARTISTS LOFT OIL PAINT 12 PIECES HIGH QUALITY PIGMENTED COLORS $8.99 Time Remaining: 5h 36m |
 Set of 15 Vintage Artists Paint Pigment Powders $39.50 (1 Bid) Time Remaining: 5h 39m |
 VICTORIAN ARTISTS PAINT BOX WRITING TOOL SET PORCUPINE QUILL PENCIL PAINTING $87.79 (11 Bids) Time Remaining: 5h 40m |
 Vintage Winsor Newton Artist Oil Paint Carrying Box w Palette $35.00 Time Remaining: 5h 41m |
 PACK OF 10 ASSORTED ARTIST PAINT BRUSHES $1.56 Time Remaining: 5h 53m |
 LOT 2 Winsor Newton ARTISTS Oil Paint 37ml NEW Mars Black Paynes Gray $6.49 Time Remaining: 5h 53m Buy It Now for only: $19.99 |
 LOT 2 Winsor Newton ARTISTS Oil Paint 37ml NEW Perm Rose Alizarin Crimson $6.49 Time Remaining: 5h 54m Buy It Now for only: $19.99 |
 Antique Watercolor Paint Artists Traveling Set Box Fabulous C 1890 $33.00 (8 Bids) Time Remaining: 6h 10m |
 Tekton by MIT 20 pc Artist Paint Brush Set $0.99 (1 Bid) Time Remaining: 6h 17m |
 Lot of 24 New Artists Wood Handle Artist Paint Brushes $3.87 Time Remaining: 6h 34m |
 Lot of 27 New Artists Brush Set Artist Paint Brushes $4.75 Time Remaining: 6h 34m |
 Lot of 24 New Artists Pointed Artist Paint Brushes $4.17 Time Remaining: 6h 35m |
 BADGER Spray Air Brush Compressor 180 12 Artist PAINT Art airbrush Tan Make up $52.84 (9 Bids) Time Remaining: 6h 50m |
 DARK WALNUT ARTIST EASEL Display Art Oil Sketch easel painting art supplies new $24.95 Time Remaining: 7h 15m Buy It Now for only: $29.95 |
 Lot of 27 New Artists Brush Set Artist Paint Brushes $13.98 Time Remaining: 7h 19m Buy It Now for only: $13.98 |
 New White Artist PAINT PALLETart palette painting oil acrylic watercolor makeup $5.89 Time Remaining: 7h 24m Buy It Now for only: $5.89 |
 Combined Artists SWEET TREATS V2 Painting Book OOPS $3.99 Time Remaining: 8h 56m Buy It Now for only: $3.99 |
 LOEW CORNELL ARTISTS OIL PAINT BRUSHES LOT OF 14 OLD $9.99 Time Remaining: 9h 7m |
 WINSOR NEWTON Artists oil paint BRIGHT RED 37ml $4.25 Time Remaining: 9h 23m |
 WINSOR NEWTON Artists oil paint WINSOR YELLOW DEEP SERIES 2 37ml $5.25 Time Remaining: 9h 24m |
 3 BLACKS WINSOR NEWTON Artists oil paints 37ml $13.75 Time Remaining: 9h 25m |
 NEW BEECH WOOD ARTIST FRENCH PAINTING EASEL SKETCH BOX BRASS HARDWARE $69.95 (1 Bid) Time Remaining: 9h 28m |
 STUDIO PRO DETAIL OIL ACRYLIC PAINT ARTIST BRUSH 14 PCS $35.00 Time Remaining: 9h 32m Buy It Now for only: $40.00 |
 Lessons in Painting Strokework by Various Artists $7.50 Time Remaining: 9h 34m |
 Vintage FAMOUS ARTIST Drawing Painting COURSE 1960 3 Lg Vol Set Course Lessons $41.00 (5 Bids) Time Remaining: 10h 19m |
 Turpenoid Odorless turpentine substitute artist medium oil paint thinner 473mL $11.33 Time Remaining: 10h 22m Buy It Now for only: $11.33 |
 Turpenoid Odorless turpentine substitute artist medium oil paint thinner 946mL $11.99 Time Remaining: 10h 28m Buy It Now for only: $11.99 |
 Turpenoid Odorless turpentine substitute artist medium oil paint thinner 379L $33.99 Time Remaining: 10h 31m Buy It Now for only: $33.99 |
 Turpenoid Odorless turpentine substitute artist medium oil paint thinner 2L $18.99 Time Remaining: 10h 35m Buy It Now for only: $18.99 |
 Venetian Art Studio Artist Painting Easel $119.00 (1 Bid) Time Remaining: 10h 57m |
 VINTAGE TIN of PRANG WATER COLORS ARTISTS PAINT $6.00 (1 Bid) Time Remaining: 10h 59m |
 LOT of 5 COLORS OIL PAINTS Super Size 180ml TUBES ARTIST ASSORTMENT PIGMENTS New $9.99 Time Remaining: 11h |
 PERMALBA DELUXE OIL BRUSH SET OF 12 artist brushes painting kits great gift $119.99 Time Remaining: 11h 2m Buy It Now for only: $119.99 |
 PERMALBA INTERMEDIATE OIL BRUSH SET OF 8 artist brushes painting sets $71.99 Time Remaining: 11h 5m Buy It Now for only: $71.99 |
 PERMALBA OIL BRUSH WHITE BRISTLE RED SABLE SET OF 8 artist painting kit $88.79 Time Remaining: 11h 16m Buy It Now for only: $88.79 |
 PERMALBA OIL BRUSH WHITE BRISTLE FILBERT SET OF 4 artist painting kit $39.59 Time Remaining: 11h 23m Buy It Now for only: $39.59 |
 PERMALBA OIL BRUSH WHITE BRISTLE RED SABLE SET OF 4 artist painting kit $77.99 Time Remaining: 11h 25m Buy It Now for only: $77.99 |
 PERMALBA OIL BRUSH WHITE BRISTLE FLAT SET OF 4 artist painting kit $44.99 Time Remaining: 11h 31m Buy It Now for only: $44.99 |
 PERMALBA OIL BRUSH WHITE BRISTLE ROUND SET OF 3 artist painting kit $26.99 Time Remaining: 11h 33m Buy It Now for only: $26.99 |
 Artist Trading Card ATC w Paint Set Brushes Helping Hands Tool Case NEW NR $20.99 (14 Bids) Time Remaining: 11h 36m |
 Artist Paint Brush Set 25 PC ACYRLIC Oil Painting Brushes Wholesale Art Supplies $9.95 Time Remaining: 11h 38m |
 WINSOR NEWTON Artists oil paint CADMIUM YELLOW SERIES 4 37ml $9.95 Time Remaining: 11h 52m Buy It Now for only: $12.95 |
 WINSOR NEWTON Artists oil paint WINSOR YELLOW SERIES 2 37ml $4.25 Time Remaining: 11h 56m |
 Full French Oil Acrylic Painting Art Easel 500 Value Artist Supplies Set NEW $134.95 Time Remaining: 11h 57m Buy It Now for only: $149.95 |
 NEW BEECH WOOD ARTIST FRENCH PAINTING EASEL SKETCH BOX BRASS HARDWARE $69.95 Time Remaining: 12h 1m Buy It Now for only: $79.95 |